Geochemical behaviour of rare earth elements in alterites of phosphates and titanium ore deposits in Tapira (Minas Gerais, Brazil) : the importance of the phosphates Geochemistry of the earth's surface and of mineral formation /Soubiès, François Melfi, A.J. Autefage, F. PHOSPHATE TITANE TERRES RARES GEOCHIMIE ALTERATION APATITE ANATASE Noack, Y. (ed.) Nahon, D. (ed.) 1990 text https://www.documentation.ird.fr/hor/fdi:31874 fdi:31874 Soubiès François, Melfi A.J., Autefage F.. Geochemical behaviour of rare earth elements in alterites of phosphates and titanium ore deposits in Tapira (Minas Gerais, Brazil) : the importance of the phosphates. In : Noack Y. (ed.), Nahon D. (ed.), . Geochemistry of the earth's surface and of mineral formation 1990, 84 (1-4), 377 Geochemistry of the Earth's Surface and of Mineral Formation : International Symposium, 2., Aix-en-Provence (FRA), 1990/07/02-08 EN BRESIL